I can give you the WOT performance of an ELIPPSE
two-blade prop on Oscar Grassle's Lancair 235/320: 242 mph TAS at 3200 rpm,
1000'dalt; 240 mph TAS at 3150 rpm, 5500' dalt; 233 mph TAS at 3090 rpm, 10,000'
dalt. These were both the predicted performance and the actual tested
data.
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